Building a light post is really easy! Light posts can be built on existing patios or pavement, as well as on an unfinished surface such as soil or grass. To install on an unfinished surface, a foundation pad must be constructed to provide a solid base. This project demonstrates how to build a light post that is 3 ft. (1 m) tall on an unfinished surface. Step 1: Prepare the Foundation Step 2: Install Ground Wiring Step 3: Add the Base Material Step 4: Install the Base Course Step 5: Continue Stacking Courses Step 6: Capping and Wiring Step 7: Securing Caps (optional) Step 8: Mounting the Light